8. Crocodiles can climb trees to bask in the sun and use tools to hunt. (Learn more at Reuters)

9. Under the health care law’s insurance marketplaces, people in much of Minnesota, northwestern Pennsylvania and Tucson, Ariz., pay premiums half the price or less than in the most expensive places. (Learn more at AARP)

10. Tuberculosis, staph and other bacteria are art. (Learn more at Smithsonian.com)

Small lungs made of felt, with DNA from tuberculosis bacteria, by artist Anna Dumitriu

11. If you get an email that starts “You are cordially invited to express your sympathy in memory of your friend at a celebration of life service…” – you should stop before you click. (Learn more at AARP)

Bonus video: This “fish on wheels” controls the direction of an electric cart by swimming.